Sellers who guarantee an item to pass but won't refund authentication fees

[packs]

I understand what you guys are saying but I think we're talking about different things. If you put in your description that the item is guaranteed to pass authentication, then why wouldn't you also guarantee the authentication fee? What exactly are you saying when you say the item will pass authentication but you aren't going to be liable for the authentication fee should it fail?

Otherwise don't offer the guarantee.